The canopy mounts of the bed's restraining frame could be slid along some concealed rails to its foot, so that the frame itself could be extended out between the bedposts until it rested on the floor in front of it. Jack strapped Silver and Tess into the frame so that they stood spread-eagled and nose to nose, with their breasts flattened against each other. They each held one side of a thick rubber ring between their teeth. Now as promised, Tess had to look Silver in the face.

She expected to see unconcealed hate in her eyes but there was instead a peculiar kind of puzzlement and even a little pity. There was certainly no awe or fear. Silver had seen Tess humbled, punished and reduced to tears. From that moment, Tess knew that she had lost her. When this was all over, she would get rid of her. But right now she had more pressing concerns.

Their pussies were joined together by a double ended dildo, and for once Tess was on the wrong end. The controlling pleasure end with its little spray of soft clit-stimulating prongs was plugged up inside Silver, while its tormenting end, with the ring of sharp studs around its base was lodged inside Tess. She winced as they pressed into her shaven sex lips.

Jack took up a lash from the selection in the bed tray and trailed its thongs across their outward facing buttocks.

'I'm going to give both of you a little lash and screw to demonstrate that you both belong to me now. This is not a punishment and you haven't displeased me in the least,' he assured Silver. 'You have displeased me, of course,' he then told Tess. 'This is also to get it into your head that you're no better than she is. You are just Tess and Silver, my slaves. From now on you both pull together, do you understand?'

They nodded.

He drew back the lash and swiped it across Silver's smooth buttocks. She yelped and bit on the rubber ring and jerked her hips forward, with the dildo clenched tight inside her. Apart from squashing their breasts together this rammed the other end of the dildo into Tess's pussy. She yelped a lot louder as the sharp studs dug deep into her soft pubic flesh.

After a couple more blows, Jack circled round and lashed Tess's bottom. She also yelped and jerked, ramming the dildo into Silver's pussy. The girl gasped and groaned, but not in pain. She was going to suffer far less than Tess was.

In this manner, Jack beat them, swiping at their buttocks again and again until they both glowed with a healthy blush. Meanwhile the women's hot bodies ground and jerked against each other building up a film of sweat between them. Tess could feel her hard nipples digging into Silver's smooth conical mammaries, while her nipples reciprocated. She had felt that before, of course, but then she had been on top of the girl riding her hard while she been strapped to a bed.

The terrible dildo was surging back and forth between them delivering its uneven gifts of pain and pleasure. It was squelching inside Tess. Her juices were dripping to the floor. She could smell Silver's arousal rising between them. It really was very sweet...

Then Silver's eyes rolled up and she moaned in ecstasy and shuddered and bucked as an orgasm tore through her. Her hips jerked wildly, jabbing Tess painfully in the pussy one last time with the dildo. Then she hung limp.

Tess glared at her, dizzy with rage. She'd been close to a climax herself, despite the pain. Now she was left in need. She had been cheated!

Jack was stroking and patting Silver. 'That was very well done,' he complimented her. 'I see you're nice and responsive. Now, is your rectum greased?'

Silver nodded. A ponygirl's bottom was always greased in preparation for whatever might be pushed up it.

'Good, because I'm going have some fun with it...'

He put down the lash and opened his flies and took hold of Silver's hips and slid his hard shaft up into her bottom hole. Silver whimpered in pleasure. Then he began to thrust.

Now was it Tess's turned to whimper, but in pain. It was as if Jack was ramming directly into her through Silver's body and the dildo, jabbing the spiked ring again and again into pussy while its ribbed shaft worked on her insides. As he pumped harder, the studs began to prick her hard clitoris.

No, that was terrible... or was it wonderful? It was certainly cruel and shameful but it was helping her over the edge until... ahhhh!

Her loins burst and she jerked about frantically against Silver's slippery body, twisting about the dildo that joined them, and then she went limp...

Tess came to while Jack was un-strapping her from the frame. Silver still hung on it. Tess was still dizzy from her orgasm. Had it been a triumph of defiance or submissive surrender? Tess slumped limply to the floor, pulling the end of the dildo out of herself. Jack took hold of her by her hair and dragged her around the frame and knelt her behind Silver.

He pushed his soiled cock into her face.

'Lick me clean,' he commanded.

And she obeyed, sucking off his sperm and the grease from Silver's bottom. When she was done, he dried his cock in her hair. Then he pointed Silver's pretty bottom with its rose-tinted buttocks and the mess that was seeping out of her anus.

'Now lick that up,' he told her.

For a moment, Tess thought she was going to be sick. No, she could, not lick the soiled arse of her own slave girl! Jack raised the lash again. Tess shuffled forward and buried her face in Silver's deep buttock cleft and wretchedly tongued and licked and sucked at the tight ring of muscle, swallowing down the juices seeping from it. She had never done such revolting thing before! She knew exactly what Silver's tongue felt inside her own pussy of course, but she would never demean herself to do such a thing in reverse to her rear.

Except that now she had. And she knew Silver hated her. And now Jack was telling her they were both equally his slaves. This terrible man had not only turned her life upside down and put her through hell; he was ruining her future as well. With a sob she slumped to the floor, her face smeared with evidence of her shame, and cried.